Clang: Add symbol storage

Extend file path cache to 64 bit integer.

Change-Id: I5627f13d59a3214f389087038482cbcc8d0eb484
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>

src/tools/clangrefactoringbackend/source/symbolstorageinterface.h

@@ -33,7 +33,7 @@ namespace ClangBackEnd {
 class SymbolStorageInterface
 {
 public:
-    virtual void addSymbolsAndSourceLocations(const SymbolEntries &symbolEentries,
+    virtual void addSymbolsAndSourceLocations(const SymbolEntries &symbolEntries,
                                               const SourceLocationEntries &sourceLocations) = 0;
 };